Here's how to spot a thriving colony: Lots of pupae! Took this shot last summer, and it is sort of staged. I had placed a flat stone against the top of this mound a few weeks befor, knowing it'd get warm which would make the ants place all their pupae there.
Lasius Niger
Photo Properties
NP! ID: 2153431
Title: Lasius Niger
File Size: 1024 × 768 – 832.58 KB
Created: Sat, 02/07/2009 - 6:15pm
Modified: Sat, 02/07/2009 - 6:15pm
File Type: image (jpeg)
Licence: None (All rights reserved)


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at 18:19 on February 7th, 2009
Pupae in a Lasius Niger nest, brought up for the increased heat under the stone which I removed to take this shot (stone was replaced once picture was shot). The heat lets the ant in the pupae develope faster. Lasius Niger is more commonly known as Black Garden Ant.